Mobile Phones and Radios: Effects on Transactions Costs and Market Participation for Households in Northern Ghana

The literature on agricultural markets suggests that transactions costs are the main obstacles preventing households from participating in agricultural markets. We examine the impact of the recent massive penetration of information communication technologies (ICTs), particularly mobile phones and radios, in developing countries to investigate the role of information in economic transactions and participation in food crop markets. To fully capture market participation behaviours, the current theoretical framework on market participation and transactions costs is extended to include those households that sell and buy in the same time period. We correct for endogeneity and selectivity throughout our models. We used a novel dataset of 393 households in northern Ghana with detailed information on market transactions and ICTs usage. Results show that receiving market information via mobile phones has a positive and significant impact on market participation, with a greater impact for households with a surplus of food crops. We find that radios have a larger impact on the quantity traded. This may reflect the nature of mobile phones in reducing searching costs, whereas radios provide an updated and regular flow of information which affects the pattern of crops consumed and sold. We also emphasise that the most significant factor is how ICTs are used, rather than their ownership.     

A metacultural approach to predicting self-employment across the globe

Drawing from neo-institutional theory, we examine the relationship between preference for entrepreneurship and actual entrepreneurship behavior across multiple countries and cultures. We elucidate how multiple societal-level cultural models, namely Hofstede, Global Leadership and Organizational Behavior Effectiveness (GLOBE), and Schwartz affect the individual-level process connecting expressed preference for self-employment and actual behavior. Our hypotheses were tested using a multilevel technique on a sample of 20,755 individuals across 24 countries. The findings indicate that the moderating effect of predominant cultural cognition is partially supported. Contributions and implications for theory and practice are also discussed.     

Does Social Capital Reduce Moral Hazard? A Network Model for Non‐Life Insurance Demand*

We study the effect of social capital in an environment in which formal, marketed insurance contracts coexist with informal agreements. We show that in the absence of peer monitoring and social pressure, non‐marketed contracts crowd out formal ones due to moral hazard. We prove, by means of an equilibrium concept typical of the network literature, that social capital can reduce moral hazard in informal agreements. We then show that under certain conditions, social capital increases the demand for marketed insurance contracts. The theoretical model we outline provides us clear guidance to measure social capital in a provincial‐level data set. The empirical model, which is estimated controlling for panel and spatial structure, supports our claim that social capital increases the demand for non‐life insurance.     

GENERAL EQUILIBRIUM THEORY WITH IMPERFECT COMPETITION1

Abstract. This survey is organized as follows. I. Introduction. II. The main issues. III. Negishi's model. IV. Objective demand in the Cournot-Nash framework. V. Objective demand in the Bertrand-Nash framework. VI. The assumption of quasi-concavity of the profit functions. VII. Compromises between the conjectural and the objective approach. VIII. Insights into the notion of perfect competition. IX. Conclusion.     

Semi-unionized bargaining with endogenous membership and management opposition

This paper develops a model of open shop unions and efficient bargain, in which there is a social custom to unionize and the firms can pay wage premiums to dissuade union membership. If firms actively oppose unions, the union density turns out to be affected by changes of the product price and the reservation wage, and it is not always positively correlated with the workers' income share. Moreover, the model provides a rationale for higher union density in centralized as opposed to decentralized bargaining systems.I would like to thank Robert Boyer, Hans Peter Grüner, Roger Guesnerie, and two referees for helpful comments and suggestions. All remaining errors are mine. Financial support from the Commission of the European Communities (SPES-915028) is gratefully acknowledged.     

Preferences regarding external information sources: a conjoint analysis of visitors to Sardinia,Italy

Utilizing a conjoint analysis approach, this study aims to examine the relative importance of external information sources for female and male international and domestic travelers utilizing data collected from 719 tourists traveling to Sardinia (Italy). Overall, findings reveal that traditional word-of-mouth (i.e. family and friends), online review sites (e.g. TripAdvisor), and the online search engines are the most important external information sources for both domestic and international travelers. However, differences in importance tourists assign to each external source exist based on type of travel (domestic versus international) and gender (male versus female). For example, while traditional word-of-mouth, online review sites, and search engines are the three most important sources for domestic male travelers, the third most important information source for domestic female travelers is found to be printed tour guides. Contributions to the current body of knowledge and managerial implications are discussed, and suggestions for further research are provided.     

FROM BOTTOM TO TOP: THE ENTIRE INCOME DISTRIBUTION IN GERMANY, 1992–2003

We analyze the distribution of market income in Germany in the period 1992 to 2003 on the basis of an integrated dataset that encompasses the whole spectrum of the population, from the very poor to the very rich. We find a modest increase of the Gini coefficient, a substantial drop of median income and a remarkable growth of the income share accruing to the economic elite, which we define as the richest 0.001 percent of persons in the population. While the elite mainly obtains its income from business and capital, the income share that it receives in the form of wage income has been increasing. We also show that the dramatic decline of market income in the bottom half of the distribution is very much mitigated by income transfers within private households and by governmental redistribution.     

Symbolic values, occupational choice, and economic development

Channeling human resources into occupations with high social productivity has historically been a key to economic prosperity. Occupational choices are not only driven by the material rewards associated with the various occupations, but also driven by the esteem that they confer. We propose a model of endogenous growth in which occupations carry a symbolic value that makes them more or less attractive; the evolution of symbolic values is endogenously determined by purposive transmission of value systems within families. The model sheds light on the interaction between cultural and economic development and identifies circumstances under which value systems matter for long-run growth. It shows the possibility of culturally determined poverty traps and offers a framework for thinking about the transition from traditional to modern values.